Manual hole digging cast-in-place pile and construction method thereof

The invention discloses a manual hole digging cast-in-place pile. The manual hole digging cast-in-place pile comprises a protecting wall and a pile body; the protecting wall comprises a plurality of arc-shaped plates forming a round barrel shape in a surrounding manner; the outer sides of the arc-shaped plates are provided with rubber cloth fixed to the arc-shaped plate, and a certain gap is reserved between every two adjacent arc-shaped plates; each arc-shaped plate is provided with a communicating hole penetrating the rubber cloth and the arc-shaped plate, and a grouting pipe forming a certain included angle with the side wall of the pile body is arranged in each communicating hole; a grout outflow pipe communicated with the interior of the grouting pipe is connected to each grouting pipe; and a limiting ring with the outer diameter larger than the diameter of the corresponding communicating hole is arranged on the outer side of a grouting port of each grouting pipe. The manual holedigging cast-in-place pil